Annabergite and Peridot Physical Properties

Annabergite

Peridot

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1 Physical Properties

1.1 Tenacity

Sectile

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.071.54-1.55

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic, Brittle, Metallic

Conchoidal

1.6 Cleavage

Perfect on {010}, indistinct on {100} and {102}

Poor

1.7 Mohs Hardness

26.5-7

2 10

1.8 Chemical Composition

Ni3(AsO4)2•8(H2O)

(Mg,Fe)₂SiO₄

Annabergite and Peridot Chemical Formula

While comparing Annabergite and Peridot physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Annabergite and Peridot chemical formula.

Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)
Chemical formula of Peridot- (Mg,Fe)₂SiO₄

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Annabergite and Peridot Specific Gravity

Another important criteria for qualitative analysis of gemstones is Annabergite and Peridot Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Annabergite and Peridot Optical Properties during the identification of gemstone. Specific gravity of Annabergite is 1.54-1.55 whereas that of Peridot is 1.54-1.55.